[INFO] fetching crate rust_multicodec 0.2.0...
[INFO] checking rust_multicodec-0.2.0 against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] extracting crate rust_multicodec 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rust_multicodec 0.2.0 on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_multicodec 0.2.0
[INFO] finished tweaking crates.io crate rust_multicodec 0.2.0
[INFO] tweaked toml for crates.io crate rust_multicodec 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5a332213f149096d5c053f12ec12431dc61a8469b3f485c8c4a4f3ce72c1ed1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f5a332213f149096d5c053f12ec12431dc61a8469b3f485c8c4a4f3ce72c1ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5a332213f149096d5c053f12ec12431dc61a8469b3f485c8c4a4f3ce72c1ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5a332213f149096d5c053f12ec12431dc61a8469b3f485c8c4a4f3ce72c1ed1", kill_on_drop: false }`
[INFO] [stdout] f5a332213f149096d5c053f12ec12431dc61a8469b3f485c8c4a4f3ce72c1ed1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f399128287c73e6147c51ca70f5c5b6dc19dec685cce18ffc0487cab83a19c3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f399128287c73e6147c51ca70f5c5b6dc19dec685cce18ffc0487cab83a19c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking integer-encoding v1.1.7
[INFO] [stderr]     Checking hex-slice v0.1.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking rust_multicodec v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::str;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `decode_var_vec` found for type `u64` in the current scope
[INFO] [stdout]   --> src/codec_prefix.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let decoded:(u64,usize)=u64::decode_var_vec(&Vec::from(data));
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ function or associated item not found in `u64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `decode_var_vec` found for type `u64` in the current scope
[INFO] [stdout]   --> src/codec_prefix.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let decoded:(u64,usize)=u64::decode_var_vec(&Vec::from(data));
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ function or associated item not found in `u64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_multicodec`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no function or associated item named `decode_var_vec` found for type `u64` in the current scope
[INFO] [stdout]   --> src/codec_prefix.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let decoded:(u64,usize)=u64::decode_var_vec(&Vec::from(data));
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ function or associated item not found in `u64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `decode_var_vec` found for type `u64` in the current scope
[INFO] [stdout]   --> src/codec_prefix.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let decoded:(u64,usize)=u64::decode_var_vec(&Vec::from(data));
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ function or associated item not found in `u64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2f399128287c73e6147c51ca70f5c5b6dc19dec685cce18ffc0487cab83a19c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f399128287c73e6147c51ca70f5c5b6dc19dec685cce18ffc0487cab83a19c3", kill_on_drop: false }`
[INFO] [stdout] 2f399128287c73e6147c51ca70f5c5b6dc19dec685cce18ffc0487cab83a19c3